EP 3693672 A1 20200812 - HYBRID HEATING SYSTEM USING PRIMARY HEATING
Title (en)
HYBRID HEATING SYSTEM USING PRIMARY HEATING
Title (de)
HYBRIDHEIZSYSTEM MIT PRIMÄRHEIZUNG
Title (fr)
SYSTÈME DE CHAUFFAGE HYBRIDE UTILISANT UN CHAUFFAGE PRIMAIRE
Publication
Application
Priority
FI 20195091 A 20190208
Abstract (en)
The object of the invention is a hybrid heating system, which includes• a primary circuit of a primary heat generator comprising in parallel at least one service water heat exchanger (10) and one heating-circuit heat exchanger (14) to be heated with the primary heat• a heating circuit (22) on the secondary side of the heat exchanger (14),• heat-pump units (HP1, HP2, HP3) connected in cascade, each comprising a compressor (31), an expansion valve (32), an evaporator (34) and a condenser (36a, 36b) and connected so as to utilize in series the exhaust-air heat recovery (20) by means of their evaporators (34) and so as to emit a secondary heat in series by means of their condensers (36a) as a unit in parallel with said primary heat heat exchanger (14),• the exhaust-air heat recovery unit (20) comprising a plurality of exhaust-air heat recovery elements (201, 202, 203) connected in series, wherein the medium circulations on both sides are connected in series and together are connected to a counter-flow so that a recurring rise in temperature of the medium and a recurring cooling of the exhaust air are realized.
IPC 8 full level
F24D 3/18 (2006.01); F24D 10/00 (2006.01); F24D 11/02 (2006.01); F24D 19/10 (2006.01)
CPC (source: EP FI US)
F24D 3/18 (2013.01 - EP); F24D 10/00 (2013.01 - EP); F24D 11/02 (2013.01 - EP); F24D 11/0207 (2013.01 - EP FI); F24D 11/0242 (2013.01 - EP); F24D 12/02 (2013.01 - FI); F24D 19/1039 (2013.01 - EP FI US); F24D 19/1072 (2013.01 - EP FI US); F24D 2200/11 (2013.01 - EP); F24D 2200/12 (2013.01 - EP); F24D 2200/123 (2013.01 - EP); F24D 2200/13 (2013.01 - EP); F24D 2200/22 (2013.01 - EP); F24D 2200/31 (2013.01 - EP); F24D 2200/32 (2013.01 - EP); F25B 2339/047 (2013.01 - EP); Y02B 10/40 (2013.01 - EP); Y02B 10/70 (2013.01 - EP); Y02B 30/12 (2013.01 - EP); Y02B 30/17 (2018.04 - EP); Y02B 30/52 (2013.01 - EP); Y02E 20/14 (2013.01 - EP); Y02P 80/14 (2015.11 - EP); Y02P 80/15 (2015.11 - EP)
Citation (search report)
- [A] US 2014366815 A1 20141218 - LU CHENFEI [CN]
- [A] EP 2397782 A2 20111221 - LG ELECTRONICS INC [KR]
- [A] WO 2011105881 A2 20110901 - PAVLOVSKIJ GENADIJ [LT], et al
- [A] ANONYMOUS: "Poistoilmalämpöpumppu (PILP) kaukolämpötaloon: ohjeet suunnittelijalle", ENERGIATEOLLISUUS, 1 December 2017 (2017-12-01), pages 1 - 5, XP055676926, Retrieved from the Internet <URL:https://energia.fi/files/2137/Poistoilmalampopumppu_kaukolampotaloon_ohjeet_suunnittelijalle.pdf> [retrieved on 20200317]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3693672 A1 20200812; EP 3693672 B1 20231220; EP 3693672 C0 20231220; FI 129146 B 20210813; FI 129742 B 20220815; FI 20195091 A1 20200809; FI 20205127 A1 20200809
DOCDB simple family (application)
EP 20155825 A 20200206; FI 20195091 A 20190208; FI 20205127 A 20200206